GEA Grasso M-Series Operating Manual page 7

Operating Manual | GEA Grasso M-Series
Screw Compressor Packages
10.2 Important information for service personnel
10.3 Cleaning the heat exchanger
10.3.1 Mechanical cleaning
10.3.2 Chemical cleaning
10.4 Maintenance
10.4.1 General instructions
10.4.2 Repair work
10.4.2.1
10.4.2.2
10.4.3 Maintenance intervals
10.4.4 Maintenance work
10.4.4.1
10.4.4.2
10.4.4.3
10.4.4.4
10.4.4.5
10.4.4.6
10.4.4.7
10.4.4.8
10.4.4.9
10.4.4.10 Checking the function of check valves
10.4.4.11 Searching for leaks on the refrigerant side / leak test
10.4.4.12 Venting the refrigerant circuit
10.4.4.13 Refrigerant evacuation
10.4.4.14 Checking the bearing noise
10.4.4.15 Checking the solenoid valves for capacity control
10.4.4.16 Checking the oil heater
10.4.4.17 Maintenance of the compressor drive motor
10.4.4.18 Checking the start regime
10.4.4.19 Checking the safety devices
10.4.4.20 Checking the operating parameters
10.4.4.21 Maintenance of the switching cabinet
10.4.4.22 Checking the earth connection
10.4.4.23 Insulation
10.4.4.24 Check of the tightening torque on the adjusting elements of the fixing base.
11 DECOMMISSIONING
11.1 Shut-down in the event of dangerous situations
11.2 Standstill for a period <48 hours
11.3 Standstill for a period >48 hours
11.4 Measures during shutdowns
11.4.1 Monthly measures during standstill
11.4.2 Four weeks before restarting
12 DECOMMISSIONING, DISPOSAL
GEA Refrigeration Germany GmbH | P_261511_1 | Generated 01.04.2015
Repair information
Repairs of pressure vessels subject to approval inspection
Maintenance of the screw compressor
Changing the block mounting filter element
Replacing the oil filter
Maintenance of the suction filter
Oil draining, oil filling, oil change
Oil pump maintenance
Changing the fine oil separation cartridges
Tightening screw fastenings
Coupling maintenance
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